Pandorus Sphinx Moth Caterpillar: A Striking Garden Visitor

Identifying This Unusual Caterpillar

If you've found a large, smooth caterpillar with prominent false eyes and a distinctive "tail" horn, you've likely encountered the Pandorus sphinx (Eumorpha pandorus). This native species is a spectacular find—its cryptic coloration mimics grape leaves (a primary host), and the mature larva can reach 3–4 inches.

Key Identification Features

• Green to brown base color with white/cream lateral streaks
• Large, conspicuous false eyes on rear
• Caudal horn (reduced to a button in final instar)
• Feeds on grape (Vitis), Virginia creeper (Parthenocissus), and peppervine (Ampelopsis)

Life Cycle and Adult Moth

The adult Pandorus sphinx moth has a 3–4 inch wingspan with camouflage patterning in brown, olive, and pinkish tones—reminiscent of military camo. It's a strong flier, often visiting flowers at dusk. There are typically two generations per year in the Southeast.

No Control Needed

These caterpillars are solitary feeders and never reach damaging populations. Enjoy the encounter—they're a sign of a healthy, diverse garden ecosystem.